CN216904001U - Contact finger spring dismounting auxiliary tool for contact net isolating switch - Google Patents

Abstract

The utility model discloses an auxiliary tool for detaching a contact finger spring of an isolating switch of a contact net, which comprises an isolating switch and a contact spring assembly elastically connected with the isolating switch, wherein the isolating switch comprises a plurality of metal plates which are symmetrically arranged and integrally formed, the contact spring assembly comprises a guide pin detachably arranged between the two metal plates, one end of the guide pin is provided with an auxiliary detaching assembly capable of extruding a spring, the auxiliary detaching assembly comprises a Y-shaped pressing piece, a special-shaped shaft fixedly matched with the Y-shaped pressing piece, a special-shaped block which is of an arc-shaped structure and protrudes outwards along the same-direction rotating outer surface of the special-shaped shaft, and a U-shaped fixing plate which is rotatably connected with the special-shaped shaft and is sleeved on the metal plates.

Description

Contact finger spring dismounting auxiliary tool for contact net isolating switch

Technical Field

The utility model relates to the field of contact networks, in particular to an auxiliary tool for disassembling a contact finger spring of a contact network isolating switch.

Background

The isolating switch is important equipment of the contact network, the flexibility and the reliability of power supply of the contact network are improved, and the isolating switch is very important to safe and stable operation of the contact network. At present, the high-speed rail mainly adopts an S3F type isolating switch, the conducting structure of the isolating switch is simpler, and a moving contact (one end with a spring) is coupled with a fixed contact in a sliding way and is pressed by a contact finger spring so as to have enough constant contact pressure. The performance of the contact finger spring is related to the coupling state of the moving contact and the static contact, and the safe and stable operation of the isolating switch is directly influenced. Therefore, the state of the finger spring needs to be checked specially for daily maintenance.

When the state of the contact finger spring is checked (whether the contact finger spring is rusted, deformed, broken and the like), the C-shaped gasket and the guide pin of the contact finger spring are firstly dismounted, and the spring can be taken out. The isolating switch is difficult to disassemble by depending on personal strength, and if tools such as a wrench and a pliers are utilized, the dynamic stability of the contact is easy to damage, and then the conductivity of the isolating switch is directly influenced. Generally, the maintenance of the contact finger spring is completed by the cooperation of two persons, the time consumption is long, the working efficiency is low, and in the process of disassembly and assembly, the adverse conditions such as damage to a contact finger coating and deformation of the spring easily occur, the service life of the isolating switch is influenced, and the operation reliability of the isolating switch is reduced.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the auxiliary tool for detaching the contact finger spring of the contact net isolating switch, the auxiliary tool can be operated by a single person, is convenient and labor-saving, has high replacing speed and high operation quality, reduces the labor intensity and improves the operation efficiency.

In order to solve the technical problems, the utility model provides the following technical scheme: contact net isolator touches and indicates spring dismantlement appurtenance, including isolator, with isolator elastic connection's touch spring assembly, isolator sets up and integrated into one piece's metal sheet including a plurality of symmetries, touch spring assembly including detachably installs the guide pin between two metal sheets, guide pin one end is provided with can be with the supplementary dismantlement subassembly of spring extrusion, supplementary dismantlement subassembly is including Y type pressing member, with Y type pressing member fixed fit's special-shaped axle, with special-shaped axle syntropy rotate the surface be arc structure and outside bellied special-shaped piece, with special-shaped axle rotation connection and cover establish the U type fixed plate at the metal sheet.

As a preferable technical solution of the present invention, the disconnecting switch includes a U-shaped groove which is provided between every two adjacent metal plates and has an open top.

As a preferred technical scheme of the present invention, both ends of the guide pin are provided with concave annular grooves which are matched with the C-shaped metal gasket, the contact spring assembly includes two contact sheets which are arranged at one end close to the auxiliary dismounting assembly, the two contact sheets are slidably connected to the outer wall of the guide pin and are arranged between the outer surface of the metal plate and the C-shaped metal gasket, and the contact spring assembly includes a spring which is arranged between the two contact sheets.

As a preferable technical scheme of the utility model, the Y-shaped pressing part comprises a U-shaped plate fixedly mounted with the special-shaped shaft and a handle fixedly mounted with the bottom of the U-shaped plate, and first rectangular holes are formed in two ends, far away from the handle, of the U-shaped plate.

As a preferable technical scheme of the utility model, the special-shaped block comprises a second rectangular hole which is formed on one side of the right upper corner and has the same aperture as the first rectangular hole, and one side of the special-shaped block, which is far away from the second rectangular hole, is vertically in a plane structure.

As a preferable technical scheme of the utility model, the special-shaped shaft comprises a rectangular rod with a three-section structure and a shaft rod integrally formed between every two sections, the rectangular rod in the middle is in interference fit with the second rectangular hole, the rectangular rods at two ends are in interference fit with the first rectangular hole, and the shaft rod is in rotary fit with the U-shaped fixing plate through a shaft hole.

As a preferable technical scheme of the utility model, one side of the U-shaped fixing plate, which is far away from the shaft hole, is provided with a clamping groove matched with the guide pin.

Compared with the prior art, the utility model can achieve the following beneficial effects:

1. through the supplementary subassembly of dismantling that sets up, mainly by Y type pressing piece, the special-shaped piece, special-shaped axle and U type fixed plate part constitute, utilize and press the special-shaped piece, when pressing Y type pressing piece from the horizontality, make the special-shaped piece extrude the spring, thereby resist the reaction force who touches the finger spring, touch the finger spring in order to realize the compression, make spring hole site atress release, and then the purpose of uninstallation, this appurtenance is single can operate, convenient laborsaving, change fastly, the operation quality is high, when reducing intensity of labour, and the operation efficiency is improved.

2. The special-shaped block is far away from one side of the second rectangular hole and is vertically of a plane structure, when the special-shaped block is in an extrusion state, one side of the plane is attached to the end part of the guide pin, and the extrusion state can be fixed without continuously pressing the handle.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic illustration of an explosive structure according to the present invention;

FIG. 3 is a schematic structural view of a U-shaped fixing plate according to the present invention;

FIG. 4 is a schematic view of the structure of the shaped block of the present invention;

FIG. 5 is a schematic view of the construction of the special-shaped shaft of the present invention;

FIG. 6 is a schematic view of a Y-shaped pressing member according to the present invention;

FIG. 7 is a schematic view of the pre-stressed contact spring assembly of the auxiliary release assembly of the present invention;

FIG. 8 is a schematic view of the auxiliary release assembly compressing the counter spring assembly of the present invention;

FIG. 9 is a schematic diagram of the structure of the isolating switch of the present invention;

FIG. 10 is a schematic view of a stop spring assembly according to the present invention;

FIG. 11 is a schematic diagram of an exploded view of a counter spring assembly of the present invention;

FIG. 12 is a schematic view of the right side of FIG. 8 according to the present invention;

fig. 13 is a front view of the structure of fig. 7 according to the present invention.

Wherein:

1. an isolating switch; 11. a metal plate; 111. a pin hole; 12. a U-shaped groove;

2. a touch-stop spring assembly; 21. a guide pin; 22. a C-shaped metal gasket; 23. a touch stop sheet; 24. a spring;

3. an auxiliary disassembly assembly; 31. a Y-shaped pressing member; 311. a U-shaped plate; 312. a handle; 313. a first rectangular hole; 32. a special-shaped block; 321. a second rectangular hole; 33. a profiled shaft; 331. a rectangular bar; 332. a shaft lever; 34. a U-shaped fixing plate; 341. a shaft hole; 342. a clamping groove.

Detailed Description

The present invention will be further described with reference to specific embodiments for the purpose of facilitating an understanding of technical means, characteristics of creation, objectives and functions realized by the present invention, but the following embodiments are only preferred embodiments of the present invention, and are not intended to be exhaustive. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1-13, the utility model provides an auxiliary tool for detaching a contact finger spring of an overhead line system disconnecting switch, which comprises a disconnecting switch 1 and a contact spring assembly 2 elastically connected with the disconnecting switch 1, wherein the disconnecting switch 1 comprises a plurality of metal plates 11 which are symmetrically arranged and integrally formed, every three metal plates 11 are in one group and two groups are symmetrically arranged, a U-shaped groove 12 with an open top is reserved between each metal plate 11, a U-shaped fixing plate 34 is convenient to be installed from the top of the metal plates 11 from top to bottom (as shown in fig. 9), the contact spring assembly 2 comprises a guide pin 21 detachably installed between the two metal plates 11, the guide pin 21 is in inserted fit with a pin hole 111 formed between the two symmetrically installed metal plates 11, the guide pin 21 is convenient to be detached (as shown in fig. 9), an auxiliary detaching assembly 3 capable of extruding a spring 24 is arranged at one end of the guide pin 21, and the auxiliary detaching assembly 3 comprises a Y-shaped pressing member 31, A special-shaped shaft 33 fixedly matched with the Y-shaped pressing piece 31, a special-shaped block 32 which has an arc-shaped structure and protrudes outwards on the same-direction rotating outer surface with the special-shaped shaft 33, and a U-shaped fixing plate 34 which is rotatably connected with the special-shaped shaft 33 and is sleeved on the metal plate 11. The special-shaped shaft 33 is rotatably engaged with the U-shaped fixing plate 34 and fixedly engaged with the Y-shaped pressing member 31, after the U-shaped fixing plate 34 is mounted from the top of the metal plate 11 from top to bottom, and the upper end (as shown in the upper surface of fig. 4) of the special-shaped block 32 abuts against one end of the guide pin 21 close to the spring 24, at this time, the auxiliary detaching assembly 3 is in a pre-pressing state (as shown in fig. 7), and then the Y-shaped pressing member 31 is pressed downward, so that the special-shaped block 32 rotates around the special-shaped shaft 33, and during the pressing process, the arc-shaped convex surface (as shown in the left end of the special-shaped block 32 gradually presses the guide pin 21 and the spring 24 (as shown in fig. 8), so that the hole site of the spring 24 is released by a force, and the guide pin 21 at the other end is ejected, and the C-shaped metal gasket is detached, thereby achieving the purpose of detaching.

Preferably, the disconnector 1 comprises a U-shaped groove 12 opened at the top between each two adjacent metal plates 11. A U-shaped groove 12 with an open top is left between each metal plate 11 to facilitate the installation of the U-shaped fixing plate 34 from the top of the metal plate 11 to the bottom (as shown in fig. 9).

Preferentially, the guide pin 21 both ends all are seted up with C type metal gasket 22 complex indent formula ring channel, touch and end spring unit 2 including setting up two near supplementary 3 one ends of dismantlement subassembly touch and end piece 23, and two touch and end piece 23 sliding connection at the outer wall of guide pin 21, and place in between 11 surfaces of metal sheet and C type metal gasket 22, touch and end spring unit 2 including setting up two and touch and end the spring 24 that sets up between piece 23. An opening structure at the lower end of the C-shaped metal gasket 22 is matched with concave annular grooves formed at two ends of the guide pin 21, the C-shaped metal gasket 22 is larger than the aperture of the pin hole 111, one end of the guide pin 21 close to the contact stop piece 23 is a movable contact, one end far away from the contact stop piece 23 is a fixed contact, the two contact stop pieces 23 are arranged between the C-shaped metal gasket 22 at one end of the movable contact and the outer surface of the metal plate 11, the two contact stop pieces 23 are movably connected with the guide pin 21, the spring 24 is sleeved at the end part of the guide pin 21 and is arranged between the two contact stop pieces 23 (as shown in fig. 12), when one end of the movable contact is extruded, the spring 24 is extruded and contracted by force, and the fixed contact is made to extend outwards.

Preferably, the Y-shaped pressing member 31 includes a U-shaped plate 311 fixedly mounted on the special-shaped shaft 33, and a handle 312 fixedly mounted on the bottom of the U-shaped plate 311, and first rectangular holes 313 are opened at two ends of the U-shaped plate 311 away from the handle 312. The special-shaped block 32 comprises a second rectangular hole 321 which is arranged on one side of the right upper corner and has the same aperture as the first rectangular hole 313, and one side of the special-shaped block 32, which is far away from the second rectangular hole 321, is vertical to form a plane structure. The special-shaped block 32 is far away from one side (vertical in the left side in fig. 4) of the second rectangular hole 321 and is vertically in a plane structure, when the special-shaped block is in an extrusion state, one side of the plane is attached to the end of the guide pin 21, the extrusion state can be fixed without continuously pressing the handle 312 (as shown in fig. 7), the special-shaped shaft 33 comprises a rectangular rod 331 with a three-section structure, a shaft rod 332 integrally formed between every two sections, the middle rectangular rod 331 is in interference fit with the second rectangular hole 321, the rectangular rods 331 at two ends are in interference fit with the first rectangular hole 313, and the shaft rod 332 is in running fit with the U-shaped fixing plate 34 through the shaft hole 341. The special-shaped shaft 33 is of a three-section structure and is integrally formed with the shaft rod 332, the rectangular rods 331 (shown in fig. 5) are arranged at the center and two ends, the middle rectangular rod 331 is in interference fit with the second rectangular hole 321, the rectangular rods 331 at two ends are in interference fit with the first rectangular hole 313, the shaft rod 332 is in rotational fit with the U-shaped fixing plate 34 through the shaft hole 341, the U-shaped plate 311 drives the special-shaped shaft 33 to rotate by pressing the handle 312, the U-shaped plate 311 is in rotational fit with the U-shaped fixing plate 34 through the shaft rod 332 and the shaft hole 341, the U-shaped fixing plate 34 is fixed behind the metal plate 11, when the handle 312 and the U-shaped plate 311 are pressed, the guide pin 21 is gradually extruded by the convex arc-shaped surfaces of the special-shaped block 32, the special-shaped shaft 33 serves as a fulcrum, and the longer handle 312 is more labor-saving.

Preferably, a side of the U-shaped fixing plate 34 away from the shaft hole 341 is provided with a locking groove 342 for engaging with the guide pin 21. The engaging groove 342 is adapted to the outer diameter of the guide pin 21, and the axis of the engaging groove 342 is located at the same axial position as the horizontal handle 312, so that the profile block 32 of the auxiliary detaching assembly 3 can be attached to the movable contact end of the guide pin 21 (as shown in fig. 3 and 7).

When the utility model is used, the handle 312, the U-shaped plate 311 and the U-shaped fixing plate 34 are in the same plane state, the arc-shaped protrusion of the special-shaped block 32 faces downwards (as shown in fig. 1), then the clamping groove 342 of the U-shaped fixing plate 34 faces the guide pin 21, the special-shaped block 32 is arranged on one side of the metal plate 11 close to the spring 24, then the U-shaped fixing plate 34 is close to the guide pin 21 from one end of the U-shaped groove 12 of the metal plate 11, the auxiliary disassembling component 3 is close to the guide pin 21, when the clamping groove 342 is completely clamped with the guide pin 21, the special-shaped block 32 is close to the end part of the guide pin 21 at one end of the movable contact, then the Y-shaped pressing piece 31 is pressed downwards, so that the special-shaped block 32 rotates around the special-shaped shaft 33, in the pressing process, the arc-shaped protrusion of the special-shaped block 32 gradually presses the guide pin 21 and the spring 24, under the action of the two contact pieces 23, the spring 24 elastically contracts between the two contact pieces 23, meanwhile, under the extrusion acting force, the C-shaped metal gasket 22 far away from one end of the spring 24 is ejected outwards, at the moment, the metal gasket 22 is free from the acting force of the spring 24, the C-shaped metal gasket 22 can be easily taken down, and then the contact spring assembly 2 is quickly disassembled and assembled.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (7)

1. Contact net isolator touches and indicates spring appurtenance dismantles, including isolator (1), with isolator (1) elastic connection's touch spring assembly (2), its characterized in that: isolator (1) sets up and integrated into one piece's metal sheet (11) including a plurality of symmetries, touch spring assembly (2) including detachably install guide pin (21) between two metal sheet (11), guide pin (21) one end is provided with can be with supplementary dismantlement subassembly (3) of spring extrusion, supplementary dismantlement subassembly (3) including Y type pressing piece (31), with Y type pressing piece (31) fixed fit's special-shaped axle (33), with special-shaped axle (33) syntropy rotate the surface be arc structure and outside bellied special-shaped piece (32), rotate with special-shaped axle (33) and be connected and establish U type fixed plate (34) at metal sheet (11) at the cover.

2. The contact net isolator touches finger spring appurtenance of dismantling of claim 1 characterized in that: the isolating switch (1) comprises a U-shaped groove (12) which is arranged between every two adjacent metal plates (11) and the top of which is of an open structure.

3. The contact net isolator touches finger spring appurtenance of dismantling of claim 1 characterized in that: guide pin (21) both ends all seted up with C type metal gasket (22) complex indent formula ring channel, touch spring unit (2) including set up two near supplementary dismantlement subassembly (3) one end touch and stop piece (23), and touch and stop piece (23) sliding connection at the outer wall of guide pin (21) for two, and arrange in between metal sheet (11) surface and C type metal gasket (22), touch spring unit (2) including set up two touch and stop spring (24) that set up between piece (23).

4. The contact net isolator touches finger spring appurtenance of dismantling of claim 1 characterized in that: the Y-shaped pressing piece (31) comprises a U-shaped plate (311) fixedly mounted with the special-shaped shaft (33) and a handle (312) fixedly mounted at the bottom of the U-shaped plate (311), and first rectangular holes (313) are formed in two ends, far away from the handle (312), of the U-shaped plate (311).

5. The contact net isolator touches finger spring appurtenance of dismantling of claim 1 characterized in that: the special-shaped block (32) comprises a second rectangular hole (321) which is formed in one side of the right upper corner and has the same aperture as the first rectangular hole (313), and one side, far away from the second rectangular hole (321), of the special-shaped block (32) is vertical to form a plane structure.

6. The contact net isolator touches finger spring appurtenance of dismantling of claim 1 characterized in that: the special-shaped shaft (33) comprises a rectangular rod (331) with a three-section structure and a shaft rod (332) integrally formed between every two sections, the rectangular rod (331) is in interference fit with the second rectangular hole (321) in the middle, the rectangular rod (331) is in interference fit with the first rectangular hole (313) at two ends, and the shaft rod (332) is in rotation fit with the U-shaped fixing plate (34) through the shaft hole (341) in front.

7. The contact net isolator touches finger spring appurtenance of dismantling of claim 1 characterized in that: and a clamping groove (342) matched with the guide pin (21) is formed in one side of the U-shaped fixing plate (34) far away from the shaft hole (341).

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